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![Page 1: Spatial Analysis and Decision Assistance (SADA) Version 5 ...mseca.org › media › DolislagerSADA.pdfSpatial Analysis and Decision Assistance (SADA) Version 5 Overview Midwestern](https://reader034.vdocuments.net/reader034/viewer/2022042400/5f0f3d297e708231d4432c70/html5/thumbnails/1.jpg)
Sp
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naly
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Assis
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SA
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) V
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5
Overv
iew
Midwestern States Risk AsssessmentSymposium
Robert Stewart
University of Tennessee, Knoxville
November 4th, 2009
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©Copyright 2009. University of Tennessee. All Rights Reserved.
2
SA
DA
Ge
ne
ral
Info
rma
tio
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Windows--based freeware designed to integrate scientific models
with decision and cost analysis frameworks in a seamless, easy to
use environment.
SADA has been supported by DOE, EPA, and the NRC. SADA
Version 4.0/4.1 has had 15000+. Version 5.0 has been out since
January, 2009. Support is provided through Yahoo groups,
training courses, and a 600 page user guide.
•Visualization/GIS
•Statistical Analysis
•Geospatial Interpolation
•Geospatial Uncertainty Analysis
•Human Health Risk Assessment
•Ecological Risk Assessment
•Custom Analysis
•MARSSIM Module
•Area of Concern Frameworks
•Cost Benefit Analysis
•Sampling Designs
•Export to Arcview/Earthvision
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Wh
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….
http://www.tiem.utk.edu/~sada/documentation.shtm
l
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©Copyright 2009. University of Tennessee. All Rights Reserved.
4
Da
ta E
xp
lora
tio
nData Plot/GIS Overlays
Statistics
Polygon Selection/Cutaways
Spatial Data Screens
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©Copyright 2009. University of Tennessee. All Rights Reserved.
5
Sta
tis
tic
s
•Numerous univariate
statistics
•Non-parametric
hypothesis testing
•Power curve based
sample sizes
•Histogram and cdf
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©Copyright 2009. University of Tennessee. All Rights Reserved.
6
Sp
ati
al
An
aly
sis
Spatial Estimation
Spatial Uncertainty
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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Hu
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•SADA implements EPA methods for conducting ecological and
human health risk assessments
•Calculation of site-specific prelim
inary remediation goals
•Benchmark database for contaminant effects on ecological receptors
•Exposure modeling for humans and over 20 other terrestrial species
•Contains IRIS/HEAST toxicity databases for calculating risk from
exposure
•Contains EPA default exposure parameters for the risk models
•Tabular screening and risk results
•Point screens
•Risk and dose mapping
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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Hu
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Ris
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•For each media
–Soil, Sediment, Surface W
ater, Groundwater
•Exposure Scenarios
–Residential,
Industrial,
Recreational,
Agricultural, Excavation
•Exposure Pathways
–Ingestion, Inhalation, Derm
al Contact, Food
Chain (Beef, Milk, and Vegetable Ingestion)
•IRIS and HEAST Toxicity Databases for Carcinogenic
and NoncarcinogenicEffects
•Physical Parameters for Modeling
–Bioaccumulation Factors
–Volatilization, Particulate Emission Factors
–Perm
eability Constants, Absorption Factors
–Saturation Coefficients,
Radionuclide Half-
Lives
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©Copyright 2009. University of Tennessee. All Rights Reserved.
9
Hu
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Ris
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•PRG Calculation
•PRG Screens
•Human Health Risk
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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Sp
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•SADA calculates risk for each sampling
point or
spatial estimate based on
contaminant and exposure scenario
•Legend scale changes to risk
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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Ec
olo
gic
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Ris
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en
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cre
en
ing
Ecological Risk Benchmarks
•Suitable for screening ERAs
•Compilation of ecological benchmarks
for surface water,
soil, and sediment
•Benchmarks
a
function
of
environmental
variables
where
appropriate
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©Copyright 2009. University of Tennessee. All Rights Reserved.
12
Ec
olo
gic
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Do
se
Ex
po
su
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•SADA
calculates dose
(mg/kg BW d) from food
ingestion, soil
ingestion,
derm
al
contact,
and
inhalation for
terrestrial
exposures
•SSL, Female, Male, or
Juvenile
•Over 20 different species
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©Copyright 2009. University of Tennessee. All Rights Reserved.
13
Cu
sto
m C
rite
ria
•View or Edit Criteria
•Data Screens
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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De
cis
ion
An
aly
sis
•Spatial Screens
•Sampling Strategies
Cost Vs Risk Reduction
•Spatial Risk
•Area of Concern
•Cost Benefit
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©Copyright 2009. University of Tennessee. All Rights Reserved.
15
3D
Vis
ua
liza
tio
n
True 3d Views: Points,
Blocks, and Isosurfaces
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©Copyright 2009. University of Tennessee. All Rights Reserved.
16
Sa
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es
ign
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Init
ial S
am
ple
Desig
ns
•Judgmental
•Simple Random
•Simple Grid
•Simple Unaligned Grid
•Standard Grid
•Standard Unaligned Grid
•MARSSIM Design
•2d and 3d Hot Spot search designs
Seco
nd
ary
Sa
mp
le D
esig
ns
•Threshold Radial
•Adaptive Fill
•High Value
–(soft, simulated & unsimulated)
•High Variance
–(soft, simulated & unsimulated)
•Extreme Value
–(soft, simulated & unsimulated)
•Area of Concern Boundary Design
–(soft, simulated & unsimulated)
•Minimize/Maximize Area of Concern
•LISA Designs
–(Ripley’s K,Moran’s I,Geary’s C)
SADA has a number of sample design strategies in Version 4.0. These
strategies include initial and secondary designs. Some are basedon
data alone while others are based on modeling results. With the
exception of a couple of exclusively 2d designs all are available in 3d
dimensions.
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©Copyright 2009. University of Tennessee. All Rights Reserved.
17
So
me
Ex
am
ple
In
itia
l D
es
ign
s
Judgmental
Random
Grids
Unaligned
Grids
3d hotspot
search
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©Copyright 2009. University of Tennessee. All Rights Reserved.
18
So
me
Ex
am
ple
Se
co
nd
ary
De
sig
ns
AOC Boundary Design
Threshold Radial
High Value Design
Adaptive Fill
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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SA
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•Provides transparency in the modeling process and facilitates
reproducibility of results.
•SADA automatically analyzes any current result and determ
ines what
the “ingredients”of that result are. These ingredients are presented to
the user, who can choose the level of documentation to create.
•Self-documentation of all
parameters, models, and other relevant
inform
ation.
–Exposure concentrations
–Risk models
–Exposure variables
–Geospatial parameters
–Toxicity data
–Images as bitmaps
•HTML form
at, can be exported to popular word processors
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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•Area of concern map
•Based on HH Risk
•Utilized inverse distance
as geospatial model
•Block based area of
concern framework.
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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Step
Analysis of Model
Elements
DocumenationOutput
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22
Re
so
urc
es
/Su
pp
ort
•Help file
•500+ page user guide
•User group
•Web page
•Classes
•EPA Clue-in classes
www.tiem.utk.edu/~sada/index.shtml
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©Copyright 2009. University of Tennessee. All Rights Reserved.
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QU
ES
TIO
NS
??
??